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Diss Factsheets

Physical & Chemical properties

Particle size distribution (Granulometry)

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Administrative data

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Reference
Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
July 2, 2014
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
comparable to guideline study
Qualifier:
no guideline followed
Principles of method if other than guideline:
Laser light scattering.
The test was performed according to the SOP - STR 071 (Hydro 2000S) protocol.
The particle size distribution was analyzed using the Mastersizer 2000 tool, which uses the technique of laser diffraction to measure the size of particles. It measures the intensity of light scattered as a laser beam passes through a dispersed particulate sample. This data is then analyzed to calculate the size of the particles that created the scattering pattern.
GLP compliance:
no
Type of method:
Laser scattering/diffraction
Type of distribution:
volumetric distribution
Percentile:
D50
Mean:
ca. 41.261 µm
St. dev.:
0
Remarks on result:
other: after 2 minutes of ultrasonic treatement. St. Deviation not reported.
Percentile:
D10
Mean:
ca. 8.54 µm
St. dev.:
0
Remarks on result:
other: after 2 minutes of ultrasonic treatement. St. deviation not reported.
Percentile:
D90
Mean:
ca. 130.456 µm
St. dev.:
0
Remarks on result:
other: after 2 minutes of ultrasonic treatement. St. deviation not reported.

The analysis has been run after 2 minutes of sonification.

Conclusions:
MD50 = 41.261 µm
Executive summary:

Method:


The substance has been tested for granulometry by the volumetric distribution.


The particle size distribution was analyzed, after 2 minutes of ultrasonic treatement, using the Mastersizer 2000 tool, which uses the technique of laser diffraction to measure the size of particles. It measures the intensity of light scattered as a laser beam passes through a dispersed particulate sample. This data is then analyzed to calculate the size of the particles that created the scattering pattern.


 


Results:


MD10 = 8.540 µm


MD50 = 41.261 µm


MD90 = 130.456 µm

Description of key information

MD10 = 8.540 µm


MD50 = 41.261 µm


MD90 = 130.456 µm

Additional information

Laser light scattering method.